... B16.5class150,300,600,900,1500,25001/2"-24"slip-on flange(SO)welding neck flange(WN)socket welding ... the privilege of serving you soon.MaterialForged Carbon Steel, Stainless Steel , Duplex Stainless Steel , Low Alloy Steel(Like A105,LF2,LF6,F6a,F304,F316 ... neck flange,socket welding flange,threaded flanged,lap joint flange,blind flange,ring joint flange,long welding neck flangefree forgingsbody,body ...